diff --git a/src/etc/etc.sgi/disktab b/src/etc/etc.sgi/disktab
index 25d75654..b71580d7 100644
--- a/src/etc/etc.sgi/disktab
+++ b/src/etc/etc.sgi/disktab
@@ -35,8 +35,8 @@ rdroot|ramdiskroot|RAM-disk root FS image:\
 
 cdroot|cdramdiskroot|RAM-disk root FS image:\
 	:ty=simulated:se#2048:nc#16:nt#224:ns#32:\
-	:ta=4.2BSD:oa#22:pa#114666:fa#2048:ba#16384:\
-	:ob#0:pb#0:oc#0:pc#114688:op#0:pp#22:
+	:ta=4.2BSD:oa#80:pa#114608:fa#2048:ba#16384:\
+	:ob#0:pb#0:oc#0:pc#114688:op#0:pp#80:
 
 # Seagate ST31200N
 ST31200N-MBR:\